<template>
	<view class="login-container">
		<uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
		<!--                                     open-type=""固定写法   @getuserinfo =""固定写法  获取登录信息      -->
		<button type="primary" class="btn-login" open-type="getUserInfo" @getuserinfo="getUserInfo">一键登录</button>
		<text class="btn-text">登录后尽享更多权益</text>
	</view>
</template>

<script>
	import {mapMutations,mapState} from 'vuex'
	export default {
		name:"my-login",
		data() {
			return {
				
			};
		},
		computed:{
			...mapState('m_user',['redirectInfo'])
		},
		methods:{
			...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
			//用户授权后 获取用户的基本信息
			getUserInfo(e){
				console.log(e)
				if(!e.detail.errMsg === 'getUserInfo:ok') return uni.$showMsg('您取消了登录授权!')
				
				console.log('yes')
				this.updateUserInfo(e.detail.userInfo)
				
				this.getToken(e.detail)
			},
			async getToken(info){
				//获取code对应的值
				const [err,res]= await uni.login().catch(err => err)
				console.log(res)
				if(err || res.errMsg !== 'login:ok') return uni.$showMsg('登录失败')
				
				// console.log(res.code)
				// console.log(info)
				//准备参数
				const query={
					code:res.code,
					encryptedData:info.encryptedData,
					iv:info.iv,
					rawData:info.rawData,
					signature:info.signature
				}
				console.log(query)
				
				 const {data:loginResult} =await uni.$http.post('/api/public/v1/users/wxlogin',query)
				if(loginResult.meta.status !==200) return uni.$showMsg('登录失败!')
				//直接把token保存vuex中
				this.updateToken(loginResult.message.token)
				this.navigateBack()
			},
			navigateBack(){
				if(this.redirectInfo && this.redirectInfo.openType ==='switchTab'){
					
					uni.switchTab({
						url:this.redirectInfo.from,
						complete: () => {
							this.updateRedirectInfo(null)
						}
					})
				}
			}
		}
	}
</script>

<style lang="scss">
.login-container{
	height: 750rpx;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	position: relative;
	overflow: hidden;
	&::after{
		content: ' ';
		display: block;
		width: 100%;
		height: 40px;
		background-color: transparent;
		border: 1rpx solid #e1e1e1;
		position: absolute;
		bottom: 0;
		left: 0;
		border-radius: 100%;
		transform: translateY(50%);
	}
	.btn-login{
		width: 90%;
		border-radius: 100px;
		margin: 15px 0;
		background:linear-gradient(
			135deg,
			hsl(170deg,80%,70%),
			hsl(170deg,80%,70%),
			hsl(190deg,80%,70%),
			hsl(250deg,80%,70%),
			hsl(320deg,80%,70%),	
		) ;
		background-size: 200% 200%;
		animation:gradient-move 15s linear infinite ;
	}
	.btn-text{
		font-size: 14px;
		color: #b3b3b3;
	}
}
@keyframes gradient-move {
            0%{
                background-position:0% 0%;
            }
			50%{
				
				background-position:50% 50%;
				
			}
            100%{
                background-position:100% 100%;
            }
			50%{
				
				background-position:50% 50%;
				
			}
			0%{
			    background-position:0% 0%;
			}
        }
</style>
